How to replace the coil heater element

How to replace the coil heater element

Use a multimeter to check the power of the coil heater element and whether the thermocouple is damaged. If you need to replace it, follow the steps below to replace it:

1. Remove the hot mold half from the mold.

2. Remove the positioning ring (the other function of the positioning ring is to fix the hot nozzle).

3. Install the lifting hole with M3 screws, remove the heating nozzle, and pay attention that the coil heater element cannot be kneaded.

4. Remove the snap ring and the heat shield of the coil heater element.

5. Hold the head of the hot nozzle, turn it clockwise and turn and pull the heating ring out to gradually separate from the hot nozzle.

6. When installing new wire, the coil heater element should be as close as possible to the main body of the heating nozzle, and the front end of the heating coil should reach the main body of the ring groove at the front end of the inner core of the heating nozzle.

7. Rotate the heating coil clockwise to move it towards the head of the heating nozzle to ensure that the heating wire completely reaches the front end of the heating nozzle. The spread of the coil heater element on the heating nozzle should be denser at both ends and sparse in the center.

 8. Install the coil heater element heat shield. If the heat shield is tight, check whether the heating coil is in place.

9. Install the circlip.

10. Detect the standard resistance value of the coil heater element and calculate the power (the standard power is engraved on the coil heater element), and detect the resistance value of the thermocouple (0 or less resistance).